The following is used for questions 25, 26, and 27.In a random sample of 200 adults, 54 say they are in favor of outlawing cigarettes.Let p be the proportion of all adults who are in favor of outlawing cigarettes. One isinterested for the following hypotheses: Ho : p = 0.23 versus H. : p #0.23.25. The standardized test statistics is about(a) -1.34. (b) -1.27(c) 1.27(d) 0.27 (e) 1.3426. The P-value of this test is(a) 0.0901(b) 0.1802(c) 0.9099(d) 0.8980(e) 1.819827. With the significance level a of 0.01, find the rejection region.

Answered: Image /qna-images/answer/7cf57638-7bd8-4651-a179-c7cb7022e9b0.jpg

Answered: The following is used for questions 25,…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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I In 2000, 6.1% of people used marijuana. This year, a company wishes to use their employment drug screening to test a claim. They take a simple random sample of 2848 job applicants and find that 145 individuals fail the drug test for marijuana. They want to test the claim that the proportion of the population failing the test is lower than 6.1%. Use .10 for the significance level. Round to three decimal places where appropriate. Hypotheses: Ho:p=6.1%Ho:p=6.1% H1:p<6.1%H1:p<6.1% Test Statistic: z = Critical Value: z = p-value: Conclusion About the Null: Reject the null hypothesis Fail to reject the null hypothesis Conclusion About the Claim: There is sufficient evidence to support the claim that the proportion of the population failing the test is lower than 6.1% There is NOT sufficient evidence to support the claim that the proportion of the population failing the test is lower than 6.1% There is sufficient evidence to warrant rejection of the claim that the…

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